https://news.eventscouncil.org/convening-leaders-2025-achieves-platinum-sustainable-event-standards-certification/
Convening Leaders 2025 Achieves Platinum Sustainable Event Standards Certification - Events...
Sep 10, 2025 - PCMA’s annual flagship event advances from Silver Certification, setting a new benchmark for sustainable business events WASHINGTON, D.C. (9 September 2025) –...
sustainable event standardsconvening leaderscertification eventsplatinum